PSP Bibliography





Notice:

  • Clicking on the title will open a new window with all details of the bibliographic entry.
  • Clicking on the DOI link will open a new window with the original bibliographic entry from the publisher.
  • Clicking on a single author will show all publications by the selected author.
  • Clicking on a single keyword, will show all publications by the selected keyword.



Found 113 entries in the Bibliography.


Showing entries from 1 through 50


2021

Parker Solar Probe observations of He/H abundance variations in SEP events inside 0.5 au

Cohen, C.M.S.; Christian, E.R.; Cummings, A.C.; Davis, A.J.; Desai, M.I.; Giacalone, J.; Hill, M.E.; Joyce, C.J.; Labrador, A.W.; Leske, R.A.; Matthaeus, W.H.; McComas, D.J.; McNutt, R.L.; Mewaldt, R.A.; Mitchell, D.G.; Rankin, J.S.; Roelof, E.C.; al., et;

Published by: Astronomy and Astrophysics      Published on:

YEAR: 2021     DOI: "10.1051/0004-6361/202039299"

Parker Data Used; parker solar probe; Solar Probe Plus

Magnetic field line random walk and solar energetic particle path lengths. Stochastic theory and PSP/ISoIS observations

Chhiber, R.; Matthaeus, W.; Cohen, C.; Ruffolo, D.; Sonsrettee, W.; Tooprakai, P.; Seripienlert, A.; Chuychai, P.; Usmanov, A.; Goldstein, M.; McComas, D.; Leske, R.; Christian, E.; Mewaldt, R.; Labrador, A.; al., et;

Published by: Astronomy and Astrophysics      Published on:

YEAR: 2021     DOI: "10.1051/0004-6361/202039816"

Parker Data Used; parker solar probe; Solar Probe Plus

2020

Novel aspects of cosmic ray diffusion in synthetic magnetic turbulence

Dundovic, Andrej; Pezzi, Oreste; Blasi, Pasquale; Evoli, Carmelo; Matthaeus, William;

Published by: \prd      Published on: 11/2020

YEAR: 2020     DOI: 10.1103/PhysRevD.102.103016

Parker Data Used; Astrophysics - High Energy Astrophysical Phenomena; Physics - Plasma Physics; Physics - Space Physics

The interpretation of data from the Parker Solar Probe mission: shear-driven transition to an isotropically turbulent solar wind

Goldstein, Melvyn; Ruffolo, D.; Matthaeus, W.~H.; Chhiber, R.; Usmanov, A.~V.; Yang, Y.; Bandyopadhyay, R.; Parashar, T.~N.; DeForest, E.; Wan, M.; Chasapis, A.; Maruca, B.~A.; Velli, M.; Kasper, J.~C.;

Published by: Radiation Effects and Defects in Solids      Published on: 11/2020

YEAR: 2020     DOI: 10.1080/10420150.2020.1845690

Proton core behaviour inside magnetic field switchbacks

During Parker Solar Probe s first two orbits, there are widespread observations of rapid magnetic field reversals known as switchbacks. These switchbacks are extensively found in the near-Sun solar wind, appear to occur in patches, and have possible links to various phenomena such as magnetic reconnection near the solar surface. As switchbacks are associated with faster plasma flows, we questioned whether they are hotter than the background plasma and whether the microphysics inside a switchback is different to its surroundi ...

Woolley, Thomas; Matteini, Lorenzo; Horbury, Timothy; Bale, Stuart; Woodham, Lloyd; Laker, Ronan; Alterman, Benjamin; Bonnell, John; Case, Anthony; Kasper, Justin; Klein, Kristopher; Martinovic, Mihailo; Stevens, Michael;

Published by: MONTHLY NOTICES OF THE ROYAL ASTRONOMICAL SOCIETY      Published on: 11/2020

YEAR: 2020     DOI: 10.1093/mnras/staa2770

Parker Data Used

Shear-driven Transition to Isotropically Turbulent Solar Wind Outside the Alfv\ en Critical Zone

Motivated by prior remote observations of a transition from striated\ solar\ coronal structures to more isotropic "flocculated" fluctuations, we propose that the dynamics of the inner\ solar\ wind just outside the Alfven critical zone, and in the vicinity of the first beta = 1 surface, is powered by the relative velocities of adjacent coronal magnetic flux tubes. We suggest that large-amplitude flow contrasts are magnetically constrained at lower altitude but shear-driven dynamics are triggered as such ...

Ruffolo, D.; Matthaeus, W.; Chhiber, R.; Usmanov, A.; Yang, Y.; Bandyopadhyay, R.; Parashar, T.; Goldstein, M.; Deforest, C.; Wan, M.; Chasapis, A.; Maruca, B.; Velli, M.; Kasper, J.;

Published by: The Astrophysical Journal      Published on: 10/2020

YEAR: 2020     DOI: 10.3847/1538-4357/abb594

Parker Data Used; parker solar probe; Solar Probe Plus

The Solar Wind Angular Momentum Flux as Observed by Parker Solar Probe

he long-term evolution of the Sun\textquoterights rotation period cannot be directly observed, and is instead inferred from trends in the measured rotation periods of other Sun-like stars. Assuming the Sun spins down as it ages, following rotation rate proportional to age(-1/2), requires the current\ solar\ angular momentum (AM) loss rate to be around 6 x 10(30)erg. Magnetohydrodynamic models, and previous observations of the\ solar\ wind (from the Helios and Wind spacecraft), generally predict a value ...

Finley, Adam; Matt, Sean; eville, Victor; Pinto, Rui; Owens, Mathew; Kasper, Justin; Korreck, Kelly; Case, A.; Stevens, Michael; Whittlesey, Phyllis; Larson, Davin; Livi, Roberto;

Published by: The Astrophysical Journal      Published on: 10/2020

YEAR: 2020     DOI: 10.3847/2041-8213/abb9a5

Parker Data Used; parker solar probe; Solar evolution; Solar Physics; Solar Probe Plus; Solar rotation; Solar wind; Stellar evolution; Stellar physics; Stellar rotation

Critical Balance and the Physics of Magnetohydrodynamic Turbulence

Oughton, S.; Matthaeus, W.~H.;

Published by: \apj      Published on: 07/2020

YEAR: 2020     DOI: 10.3847/1538-4357/ab8f2a

Parker Data Used; 830; 1544; 1534; 2129; 23; 1964; Physics - Plasma Physics; Astrophysics - Solar and Stellar Astrophysics

Coronal Electron Temperature Inferred from the Strahl Electrons in the Inner Heliosphere: Parker Solar Probe and Helios Observations

The shape of the electron velocity distribution function plays an important role in the dynamics of the solar wind acceleration. Electrons are normally modeled with three components, the core, the halo, and the strahl. We investigate how well the fast strahl electrons in the inner heliosphere preserve the information about the coronal electron temperature at their origin. We analyzed the data obtained by two missions, Helios, spanning the distances between 65 and 215 RS, and Parker Solar Probe (PSP), reaching d ...

Bercic, Laura; Larson, Davin; Whittlesey, Phyllis; Maksimovic, Milan; Badman, Samuel; Landi, Simone; Matteini, Lorenzo; Bale, Stuart.; Bonnell, John; Case, Anthony; de Wit, Thierry; Goetz, Keith; Harvey, Peter; Kasper, Justin; Korreck, Kelly; Livi, Roberto; MacDowall, Robert; Malaspina, David; Pulupa, Marc; Stevens, Michael;

Published by: The Astrophysical Journal      Published on: 04/2020

YEAR: 2020     DOI: 10.3847/1538-4357/ab7b7a

Astrophysics - Solar and Stellar Astrophysics; Parker Data Used; parker solar probe; Physics - Space Physics; Solar Probe Plus

Pathways to Dissipation in Weakly Collisional Plasmas

Matthaeus, William; Yang, Yan; Wan, Minping; Parashar, Tulasi; Bandyopadhyay, Riddhi; Chasapis, Alexandros; Pezzi, Oreste; Valentini, Francesco;

Published by: \apj      Published on: 03/2020

YEAR: 2020     DOI: 10.3847/1538-4357/ab6d6a

Parker Data Used; 2089; 1261; 1544; 830; 1989; 1534

Magnetic Field Kinks and Folds in the Solar Wind

Parker Solar Probe (PSP) observations during its first encounter at 35.7 R have shown the presence of magnetic field lines that are strongly perturbed to the point that they produce local inversions of the radial magnetic field, known as switchbacks. Their counterparts in the solar wind velocity field are local enhancements in the radial speed, or jets, displaying (in all components) the velocity-magnetic field correlation typical of large amplitude Alfv\ en waves propagating away from the Sun. Switchbacks a ...

Tenerani, Anna; Velli, Marco; Matteini, Lorenzo; eville, Victor; Shi, Chen; Bale, Stuart; Kasper, Justin; Bonnell, John; Case, Anthony; de Wit, Thierry; Goetz, Keith; Harvey, Peter; Klein, Kristopher; Korreck, Kelly; Larson, Davin; Livi, Roberto; MacDowall, Robert; Malaspina, David; Pulupa, Marc; Stevens, Michael; Whittlesey, Phyllis;

Published by: The Astrophysical Journal Supplement Series      Published on: 02/2020

YEAR: 2020     DOI: 10.3847/1538-4365/ab53e1

Astrophysics - Solar and Stellar Astrophysics; Parker Data Used; parker solar probe; Physics - Space Physics; Solar Probe Plus

Measures of Scale-dependent Alfv\ enicity in the First PSP Solar Encounter

The solar wind shows periods of highly Alfv\ enic activity, where velocity fluctuations and magnetic fluctuations are aligned or antialigned with each other. It is generally agreed that solar wind plasma velocity and magnetic field fluctuations observed by the Parker Solar Probe (PSP) during the first encounter are mostly highly Alfv\ enic. However, quantitative measures of Alfv\ enicity are needed to understand how the characterization of these fluctuations compares with standard measures from prior missions in the inner ...

Parashar, T.; Goldstein, M.; Maruca, B.; Matthaeus, W.; Ruffolo, D.; Bandyopadhyay, R.; Chhiber, R.; Chasapis, A.; Qudsi, R.; Vech, D.; Roberts, D.; Bale, S.; Bonnell, J.; de Wit, Dudok; Goetz, K.; Harvey, P.; MacDowall, R.; Malaspina, D.; Pulupa, M.; Kasper, J.; Korreck, K.; Case, A.; Stevens, M.; Whittlesey, P.; Larson, D.; Livi, R.; Velli, M.; Raouafi, N.;

Published by: The Astrophysical Journal Supplement Series      Published on: 02/2020

YEAR: 2020     DOI: 10.3847/1538-4365/ab64e6

Parker Data Used; parker solar probe; Solar Probe Plus

CME-associated Energetic Ions at 0.23 au: Consideration of the Auroral Pressure Cooker Mechanism Operating in the Low Corona as a Possible Energization Process

Mitchell, D.~G.; Giacalone, J.; Allen, R.~C.; Hill, M.~E.; McNutt, R.~L.; McComas, D.~J.; Szalay, J.~R.; Schwadron, N.~A.; Rouillard, A.~P.; Bale, S.~B.; Chaston, C.~C.; Pulupa, M.~P.; Whittlesey, P.~L.; Kasper, J.~C.; MacDowall, R.~J.; Christian, E.~R.; Wiedenbeck, M.~E.; Matthaeus, W.~H.;

Published by: \apjs      Published on: 02/2020

YEAR: 2020     DOI: 10.3847/1538-4365/ab63cc

Parker Data Used; 1491; 310; 1496; Physics - Space Physics; Astrophysics - Solar and Stellar Astrophysics

Observations of Energetic-particle Population Enhancements along Intermittent Structures near the Sun from the Parker Solar Probe

Observations at 1 au have confirmed that enhancements in measured energetic-particle (EP) fluxes are statistically associated with "rough" magnetic fields, i.e., fields with atypically large spatial derivatives or increments, as measured by the Partial Variance of Increments (PVI) method. One way to interpret this observation is as an association of the EPs with trapping or channeling within magnetic flux tubes, possibly near their boundaries. However, it remains unclear whether this association is a transport or local ef ...

Bandyopadhyay, Riddhi; Matthaeus, W.; Parashar, T.; Chhiber, R.; Ruffolo, D.; Goldstein, M.; Maruca, B.; Chasapis, A.; Qudsi, R.; McComas, D.; Christian, E.; Szalay, J.; Joyce, C.; Giacalone, J.; Schwadron, N.; Mitchell, D.; Hill, M.; Wiedenbeck, M.; McNutt, R.; Desai, M.; Bale, Stuart; Bonnell, J.; de Wit, Thierry; Goetz, Keith; Harvey, Peter; MacDowall, Robert; Malaspina, David; Pulupa, Marc; Velli, M.; Kasper, J.; Korreck, K.; Stevens, M.; Case, A.; Raouafi, N.;

Published by: The Astrophysical Journal Supplement Series      Published on: 02/2020

YEAR: 2020     DOI: 10.3847/1538-4365/ab6220

Astrophysics - Solar and Stellar Astrophysics; Parker Data Used; parker solar probe; Physics - Plasma Physics; Physics - Space Physics; Solar Probe Plus

Observations of Heating along Intermittent Structures in the Inner Heliosphere from PSP Data

The solar wind proton temperature at 1 au has been found to be correlated with small-scale intermittent magnetic structures, i.e., regions with enhanced temperature are associated with coherent structures, such as current sheets. Using Parker Solar Probe data from the first encounter, we study this association using measurements of the radial proton temperature, employing the partial variance of increments (PVI) technique to identify intermittent magnetic structures. We observe that the probability density functions of hi ...

Qudsi, R.; Maruca, B.; Matthaeus, W.; Parashar, T.; Bandyopadhyay, Riddhi; Chhiber, R.; Chasapis, A.; Goldstein, Melvyn; Bale, S.; Bonnell, J.; de Wit, Dudok; Goetz, K.; Harvey, P.; MacDowall, R.; Malaspina, D.; Pulupa, M.; Kasper, J.; Korreck, K.; Case, A.; Stevens, M.; Whittlesey, P.; Larson, D.; Livi, R.; Velli, M.; Raouafi, N.;

Published by: The Astrophysical Journal Supplement Series      Published on: 02/2020

YEAR: 2020     DOI: 10.3847/1538-4365/ab5c19

Parker Data Used; parker solar probe; Physics - Plasma Physics; Physics - Space Physics; Solar Probe Plus

Observations of the 2019 April 4 Solar Energetic Particle Event at the Parker Solar Probe

A solar energetic particle event was detected by the Integrated Science Investigation of the Sun (IS☉IS) instrument suite on Parker Solar Probe (PSP) on 2019 April 4 when the spacecraft was inside of 0.17 au and less than 1 day before its second perihelion, providing an opportunity to study solar particle acceleration and transport unprecedentedly close to the source. The event was very small, with peak 1 MeV proton intensities of ̃0.3 particles (cm2 sr s MeV)-1, and was undetectable above backgro ...

Leske, R.; Christian, E.; Cohen, C.; Cummings, A.; Davis, A.; Desai, M.; Giacalone, J.; Hill, M.; Joyce, C.; Krimigis, S.; Labrador, A.; Malandraki, O.; Matthaeus, W.; McComas, D.; McNutt, R.; Mewaldt, R.; Mitchell, D.; Posner, A.; Rankin, J.; Roelof, E.; Schwadron, N.; Stone, E.; Szalay, J.; Wiedenbeck, M.; Vourlidas, A.; Bale, S.; MacDowall, R.; Pulupa, M.; Kasper, J.; Allen, R.; Case, A.; Korreck, K.; Livi, R.; Stevens, M.; Whittlesey, P.; Poduval, B.;

Published by: The Astrophysical Journal Supplement Series      Published on: 02/2020

YEAR: 2020     DOI: 10.3847/1538-4365/ab5712

Astrophysics - Solar and Stellar Astrophysics; Parker Data Used; parker solar probe; Physics - Space Physics; Solar Probe Plus

Properties of Suprathermal-through-energetic He Ions Associated with Stream Interaction Regions Observed over the Parker Solar Probe \textquoterights First Two Orbits

The Integrated Science Investigation of the Sun (IS☉IS) suite on board NASA\textquoterights Parker Solar Probe (PSP) observed six distinct enhancements in the intensities of suprathermal-through-energetic (\~0.03-3 MeV nucleon-1) He ions associated with corotating or stream interaction regions (CIR or SIR) during its first two orbits. Our results from a survey of the time histories of the He intensities, spectral slopes, and anisotropies and the event-averaged energy spectra during these events show the follo ...

Desai, M.; Mitchell, D.; Szalay, J.; Roelof, E.; Giacalone, J.; Hill, M.; McComas, D.; Christian, E.; Schwadron, N.; McNutt, R.; Wiedenbeck, M.; Joyce, C.; Cohen, C.; Ebert, R.; Dayeh, M.; Allen, R.; Davis, A.; Krimigis, S.; Leske, R.; Matthaeus, W.; Malandraki, O.; Mewaldt, R.; Labrador, A.; Stone, E.; Bale, S.; Pulupa, M.; MacDowall, R.; Kasper, J.;

Published by: The Astrophysical Journal Supplement Series      Published on: 02/2020

YEAR: 2020     DOI: 10.3847/1538-4365/ab65ef

Parker Data Used; parker solar probe; Solar Probe Plus

Seed Population Preconditioning and Acceleration Observed by the Parker Solar Probe

A series of solar energetic particle (SEP) events was observed by the Integrated Science Investigation of the Sun (IS☉IS) on the Parker Solar Probe (PSP) during the period from 2019 April 18 through 24. The PSP spacecraft was located near 0.48 au from the Sun on Parker spiral field lines that projected out to 1 au within ̃25\textdegree of the near-Earth spacecraft. These SEP events, though small compared to historically large SEP events, were among the largest observed thus far in the PSP mission and provide critical i ...

Schwadron, N.; Bale, S.; Bonnell, J.; Case, A.; Christian, E.; Cohen, C.; Cummings, A.; Davis, A.; de Wit, Dudok; de Wet, W.; Desai, M.; Joyce, C.; Goetz, K.; Giacalone, J.; Gorby, M.; Harvey, P.; Heber, B.; Hill, M.; Karavolos, M.; Kasper, J.; Korreck, K.; Larson, D.; Livi, R.; Leske, R.; Malandraki, O.; MacDowall, R.; Malaspina, D.; Matthaeus, W.; McComas, D.; McNutt, R.; Mewaldt, R.; Mitchell, D.; Mays, L.; Niehof, J.; Odstrcil, D.; Pulupa, M.; Poduval, B.; Rankin, J.; Roelof, E.; Stevens, M.; Stone, E.; Szalay, J.; Wiedenbeck, M.; Winslow, R.; Whittlesey, P.;

Published by: The Astrophysical Journal Supplement Series      Published on: 02/2020

YEAR: 2020     DOI: 10.3847/1538-4365/ab5527

Astrophysics - Solar and Stellar Astrophysics; Parker Data Used; parker solar probe; Physics - Space Physics; Solar Probe Plus

Sharp Alfv\ enic Impulses in the Near-Sun Solar Wind

Measurements of the near-Sun solar wind by the Parker Solar Probe have revealed the presence of large numbers of discrete Alfv\ enic impulses with an anti-sunward sense of propagation. These are similar to those previously observed near 1 au, in high speed streams over the Sun\textquoterights poles and at 60 solar radii. At 35 solar radii, however, they are typically shorter and sharper than seen elsewhere. In addition, these spikes occur in "patches" and there are also clear periods within the same stream when they do no ...

Horbury, Timothy; Woolley, Thomas; Laker, Ronan; Matteini, Lorenzo; Eastwood, Jonathan; Bale, Stuart; Velli, Marco; Chandran, Benjamin; Phan, Tai; Raouafi, Nour; Goetz, Keith; Harvey, Peter; Pulupa, Marc; Klein, K.; de Wit, Thierry; Kasper, Justin; Korreck, Kelly; Case, A.; Stevens, Michael; Whittlesey, Phyllis; Larson, Davin; MacDowall, Robert; Malaspina, David; Livi, Roberto;

Published by: The Astrophysical Journal Supplement Series      Published on: 02/2020

YEAR: 2020     DOI: 10.3847/1538-4365/ab5b15

Parker Data Used; parker solar probe; Solar Probe Plus

Solar Energetic Particles Produced by a Slow Coronal Mass Ejection at \~0.25 au

We present an analysis of Parker Solar Probe (PSP) IS☉IS observations of ̃30-300 keV n-1 ions on 2018 November 11 when PSP was about 0.25 au from the Sun. Five hours before the onset of a solar energetic particle (SEP) event, a coronal mass ejection (CME) was observed by STEREO-A/COR2, which crossed PSP about a day later. No shock was observed locally at PSP, but the CME may have driven a weak shock earlier. The SEP event was dispersive, with higher energy ions arriving before the lower energy ones. Timing s ...

Giacalone, J.; Mitchell, D.; Allen, R.; Hill, M.; McNutt, R.; Szalay, J.; Desai, M.; Rouillard, A.; Kouloumvakos, A.; McComas, D.; Christian, E.; Schwadron, N.; Wiedenbeck, M.; Bale, S.; Brown, L.; Case, A.; Chen, X.; Cohen, C.; Joyce, C.; Kasper, J.; Klein, K.; Korreck, K.; Larson, D.; Livi, R.; Leske, R.; MacDowall, R.; Matthaeus, W.; Mewaldt, R.; Nieves-Chinchilla, T.; Pulupa, M.; Roelof, E.; Stevens, M.; Szabo, A.; Whittlesey, P.;

Published by: The Astrophysical Journal Supplement Series      Published on: 02/2020

YEAR: 2020     DOI: 10.3847/1538-4365/ab5221

Parker Data Used; parker solar probe; Solar Probe Plus

3 He-rich Solar Energetic Particle Observations at the Parker Solar Probe and near Earth

The Integrated Science Investigation of the Sun (IS☉IS) instrument suite on the Parker Solar Probe (PSP) spacecraft is making in situ observations of energetic ions and electrons closer to the Sun than any previous mission. Using data collected during its first two orbits, which reached perihelion distances of 0.17 au, we have searched for \ 3\ He\ 3He -rich solar energetic particle (SEP) events under very quiet solar minimum conditions. On 2019-110-111 (April 20-21), \ 3\ He\ 3He -rich SEP ...

Wiedenbeck, M.; ik, Bu\v; Mason, G.; Ho, G.; Leske, R.; Cohen, C.; Christian, E.; Cummings, A.; Davis, A.; Desai, M.; Giacalone, J.; Haggerty, D.; Hill, M.; Joyce, C.; Labrador, A.; Malandraki, O.; Matthaeus, W.; McComas, D.; McNutt, R.; Mewaldt, R.; Mitchell, D.; Posner, A.; Rankin, J.; Roelof, E.; Schwadron, N.; Stone, E.; Szalay, J.; Bale, S.; Case, A.; Kasper, J.; Korreck, K.; Larson, D.; MacDowall, R.; Pulupa, M.; Stevens, M.;

Published by: The Astrophysical Journal Supplement Series      Published on: 02/2020

YEAR: 2020     DOI: 10.3847/1538-4365/ab5963

Parker Data Used; parker solar probe; Solar Probe Plus

Switchbacks in the Near-Sun Magnetic Field: Long Memory and Impact on the Turbulence Cascade

One of the most striking observations made by Parker Solar Probe during its first solar encounter is the omnipresence of rapid polarity reversals in a magnetic field that is otherwise mostly radial. These so-called switchbacks strongly affect the dynamics of the magnetic field. We concentrate here on their macroscopic properties. First, we find that these structures are self-similar, and have neither a characteristic magnitude, nor a characteristic duration. Their waiting time statistics show evidence of aggregation. The ...

de Wit, Thierry; Krasnoselskikh, Vladimir; Bale, Stuart; Bonnell, John; Bowen, Trevor; Chen, Christopher; Froment, Clara; Goetz, Keith; Harvey, Peter; Jagarlamudi, Vamsee; Larosa, Andrea; MacDowall, Robert; Malaspina, David; Matthaeus, William; Pulupa, Marc; Velli, Marco; Whittlesey, Phyllis;

Published by: The Astrophysical Journal Supplement Series      Published on: 02/2020

YEAR: 2020     DOI: 10.3847/1538-4365/ab5853

Astrophysics - Solar and Stellar Astrophysics; Parker Data Used; parker solar probe; Physics - Space Physics; Solar Probe Plus

Clustering of Intermittent Magnetic and Flow Structures near Parker Solar Probe \textquoterights First Perihelion\textemdashA Partial-variance-of-increments Analysis

During the Parker Solar Probe\textquoterights (PSP) first perihelion pass, the spacecraft reached within a heliocentric distance of ̃37 R and observed numerous magnetic and flow structures characterized by sharp gradients. To better understand these intermittent structures in the young solar wind, an important property to examine is their degree of correlation in time and space. To this end, we use the well-tested partial variance of increments (PVI) technique to identify intermittent events in FIELDS and S ...

Chhiber, Rohit; Goldstein, M; Maruca, B.; Chasapis, A.; Matthaeus, W.; Ruffolo, D.; Bandyopadhyay, R.; Parashar, T.; Qudsi, R.; de Wit, Dudok; Bale, S.; Bonnell, J.; Goetz, K.; Harvey, P.; MacDowall, R.; Malaspina, D.; Pulupa, M.; Kasper, J.; Korreck, K.; Case, A.; Stevens, M.; Whittlesey, P.; Larson, D.; Livi, R.; Velli, M.; Raouafi, N.;

Published by: The Astrophysical Journal Supplement Series      Published on: 02/2020

YEAR: 2020     DOI: 10.3847/1538-4365/ab53d2

Astrophysics - Solar and Stellar Astrophysics; Parker Data Used; parker solar probe; Physics - Space Physics; Solar Probe Plus

Energetic Particle Increases Associated with Stream Interaction Regions

The Parker Solar Probe was launched on 2018 August 12 and completed its second orbit on 2019 June 19 with perihelion of 35.7 solar radii. During this time, the Energetic Particle Instrument-Hi (EPI-Hi, one of the two energetic particle instruments comprising the Integrated Science Investigation of the Sun, IS☉IS) measured seven proton intensity increases associated with stream interaction regions (SIRs), two of which appear to be occurring in the same region corotating with the Sun. The events are relatively weak, with ...

Cohen, C.; Christian, E.; Cummings, A.; Davis, A.; Desai, M.; Giacalone, J.; Hill, M.; Joyce, C.; Labrador, A.; Leske, R.; Matthaeus, W.; McComas, D.; McNutt, R.; Mewaldt, R.; Mitchell, D.; Rankin, J.; Roelof, E.; Schwadron, N.; Stone, E.; Szalay, J.; Wiedenbeck, M.; Allen, R.; Ho, G.; Jian, L.; Lario, D.; Odstrcil, D.; Bale, S.; Badman, S.; Pulupa, M.; MacDowall, R.; Kasper, J.; Case, A.; Korreck, K.; Larson, D.; Livi, Roberto; Stevens, M.; Whittlesey, Phyllis;

Published by: The Astrophysical Journal Supplement Series      Published on: 02/2020

YEAR: 2020     DOI: 10.3847/1538-4365/ab4c38

Astrophysics - Solar and Stellar Astrophysics; Parker Data Used; parker solar probe; Physics - Space Physics; Solar Probe Plus

Energetic Particle Observations from the Parker Solar Probe Using Combined Energy Spectra from the IS⊙IS Instrument Suite

The Integrated Science Investigations of the Sun (IS☉IS) instrument suite includes two Energetic Particle instruments: EPI-Hi, designed to measure ions from ̃1 to 200 MeV nuc-1, and EPI-Lo, designed to measure ions from ̃20 to ̃15 MeV nuc-1. We present an analysis of eight energetic proton events observed across the energy range of both instruments during Parker Solar Probe\textquoterights (PSP) first two orbits in order to examine their combined energy spectra. Background corrections are applie ...

Joyce, C.; McComas, D.; Christian, E.; Schwadron, N.; Wiedenbeck, M.; McNutt, R.; Cohen, C.; Leske, R.; Mewaldt, R.; Stone, E.; Labrador, A.; Davis, A.; Cummings, A.; Mitchell, D.; Hill, M.; Roelof, E.; Szalay, J.; Rankin, J.; Desai, M.; Giacalone, J.; Matthaeus, W.;

Published by: The Astrophysical Journal Supplement Series      Published on: 02/2020

YEAR: 2020     DOI: 10.3847/1538-4365/ab5948

Astrophysics - Solar and Stellar Astrophysics; Parker Data Used; parker solar probe; Physics - Space Physics; Solar Probe Plus

Enhanced Energy Transfer Rate in Solar Wind Turbulence Observed near the Sun from Parker Solar Probe

Direct evidence of an inertial-range turbulent energy cascade has been provided by spacecraft observations in heliospheric plasmas. In the solar wind, the average value of the derived heating rate near 1 au is \~10\ 3\ Jkg\ -1\ s\ -1\ \ \~103Jkg-1s-1 , an amount sufficient to account for observed departures from adiabatic expansion. Parker Solar Probe, even during its first solar encounter, offers the first opportunity to compute, in a similar fashion, a fluid-scale energy decay rate, mu ...

Bandyopadhyay, Riddhi; Goldstein, M.; Maruca, B.; Matthaeus, W.; Parashar, T.; Ruffolo, D.; Chhiber, R.; Usmanov, A.; Chasapis, A.; Qudsi, R.; Bale, Stuart; Bonnell, J.; de Wit, Thierry; Goetz, Keith; Harvey, Peter; MacDowall, Robert; Malaspina, David; Pulupa, Marc; Kasper, J.; Korreck, K.; Case, A.; Stevens, M.; Whittlesey, P.; Larson, D.; Livi, R.; Klein, K.; Velli, M.; Raouafi, N.;

Published by: The Astrophysical Journal Supplement Series      Published on: 02/2020

YEAR: 2020     DOI: 10.3847/1538-4365/ab5dae

Astrophysics - Solar and Stellar Astrophysics; Parker Data Used; parker solar probe; Physics - Plasma Physics; Physics - Space Physics; Solar Probe Plus

Highly Alfv\ enic slow solar wind at 0.3 au during a solar minimum: Helios insights for Parker Solar Probe and Solar Orbiter

Alfv\ enic fluctuations in solar wind are an intrinsic property of fast streams, while slow intervals typically have a very low degree of Alfv\ enicity, with much more variable parameters. However, sometimes a slow wind can be highly Alfv\ enic. Here we compare three different regimes of solar wind, in terms of Alfv\ enic content and spectral properties, during a minimum phase of the solar activity and at 0.3 au. We show that fast and Alfv\ enic slow intervals share some common characteristics. This would suggest a simila ...

Perrone, D.; D\textquoterightAmicis, R.; De Marco, R.; Matteini, L.; Stansby, D.; Bruno, R.; Horbury, T.;

Published by: Astronomy \& Astrophysics      Published on: 01/2020

YEAR: 2020     DOI: 10.1051/0004-6361/201937064

parker solar probe; plasmas; Solar Probe Plus; Solar wind; Sun: corona; Sun: heliosphere; turbulence

The contribution of alpha particles to the solar wind angular momentum flux in the inner heliosphere

Finley, A.; McManus, M.; Matt, S.; Kasper, J.; Korreck, K.; Case, A.; Stevens, M.; Whittlesey, P.; Larson, D.; Livi, R.; Bale, S.; de Wit, Dudok; Goetz, K.; Harvey, P.; MacDowall, R.; Malaspina, D.; Pulupa, M.;

Published by: Astronomy and Astrophysics      Published on:

YEAR: 2020     DOI: "10.1051/0004-6361/202039288"

Parker Data Used; parker solar probe; Solar Probe Plus

Statistical analysis of orientation, shape, and size of solar wind switchbacks

Laker, R.; Horbury, T.; Bale, S.; Matteini, L.; Woolley, T.; Woodham, L.; Badman, S.; Pulupa, M.; Kasper, J.; Stevens, M.; Case, A.; Korreck, K.;

Published by: Astronomy and Astrophysics      Published on:

YEAR: 2020     DOI: "10.1051/0004-6361/202039354"

Parker Data Used; parker solar probe; Solar Probe Plus

Enhanced proton parallel temperature inside patches of switchbacks in the inner heliosphere

Woodham, L.; Horbury, T.; Matteini, L.; Woolley, T.; Laker, R.; Bale, S.; Nicolaou, G.; Stawarz, J.; Stansby, D.; Hietala, H.; Larson, D.; Livi, R.; Verniero, J.; McManus, M.; Kasper, J.; Korreck, K.; Raouafi, N.; Moncuquet, M.; Pulupa, M.;

Published by: Astronomy and Astrophysics      Published on:

YEAR: 2020     DOI: "10.1051/0004-6361/202039415"

Parker Data Used; parker solar probe; Solar Probe Plus

Identification of coherent structures in space plasmas: The magnetic helicity-PVI method

Pecora, F.; Servidio, S.; Greco, A.; Matthaeus, W.;

Published by: Astronomy and Astrophysics      Published on:

YEAR: 2020     DOI: "10.1051/0004-6361/202039639"

Parker Data Used; parker solar probe; Solar Probe Plus

Sensitivity of solar wind mass flux to coronal temperature

Stansby, D.; Bercic, L.; Matteini, L.; Owen, C.; French, R.; Baker, D.; Badman, S.;

Published by: Astronomy and Astrophysics      Published on:

YEAR: 2020     DOI: "10.1051/0004-6361/202039789"

Parker Data Used; parker solar probe; Solar Probe Plus

2019

Probing the energetic particle environment near the Sun

NASA\textquoterights Parker Solar Probe mission recently plunged through the inner heliosphere of the Sun to its perihelia, about 24 million kilometres from the Sun. Previous studies farther from the Sun (performed mostly at a distance of 1 astronomical unit) indicate that solar energetic particles are accelerated from a few kiloelectronvolts up to near-relativistic energies via at least two processes: "impulsive" events, which are usually associated with magnetic reconnection in solar flares and are typically enriched in ...

McComas, D.; Christian, E.; Cohen, C.; Cummings, A.; Davis, A.; Desai, M.; Giacalone, J.; Hill, M.; Joyce, C.; Krimigis, S.; Labrador, A.; Leske, R.; Malandraki, O.; Matthaeus, W.; McNutt, R.; Mewaldt, R.; Mitchell, D.; Posner, A.; Rankin, J.; Roelof, E.; Schwadron, N.; Stone, E.; Szalay, J.; Wiedenbeck, M.; Bale, S.; Kasper, J.; Case, A.; Korreck, K.; MacDowall, R.; Pulupa, M.; Stevens, M.; Rouillard, A.;

Published by: Nature      Published on: 12/2019

YEAR: 2019     DOI: 10.1038/s41586-019-1811-1

Parker Data Used; parker solar probe; Solar Probe Plus

Reynolds Number and Intermittency in the Expanding Solar Wind: Predictions Based on Voyager Observations

The large-scale features of the solar wind are examined in order to predict small-scale features of turbulence in unexplored regions of the heliosphere. The strategy is to examine how system size, or effective Reynolds number Re, varies, and then how this quantity influences observable statistical properties, including intermittency properties of solar wind turbulence. The expectation based on similar hydrodynamics scalings is that the kurtosis, of the small-scale magnetic field increments, will increase with increasing R ...

Parashar, T.; Cuesta, M.; Matthaeus, W.;

Published by: The Astrophysical Journal      Published on: 10/2019

YEAR: 2019     DOI: 10.3847/2041-8213/ab4a82

Heliosphere; interplanetary turbulence; parker solar probe; Physics - Space Physics; Plasma astrophysics; Solar Probe Plus; Solar wind; Space plasmas

Thermodynamics of pure fast solar wind: radial evolution of the temperature\textendashspeed relationship in the inner heliosphereABSTRACT

A strong correlation between speed and proton temperature has been observed, across many years, on hourly averaged measurements in the solar wind. Here, we show that this relationship is also observed at a smaller scale on intervals of a few days, within a single stream. Following the radial evolution of a well-defined stream of coronal-hole plasma, we show that the temperature-speed (T-V) relationship evolves with distance, implying that the T-V relationship at 1 au cannot be used as a proxy for that near the Sun. We sug ...

Perrone, Denise; Stansby, D; Horbury, T; Matteini, L;

Published by: Monthly Notices of the Royal Astronomical Society      Published on: 09/2019

YEAR: 2019     DOI: 10.1093/mnras/stz1877

parker solar probe; Solar Probe Plus; Solar wind; Sun: corona; Sun: heliosphere

Role of magnetic field curvature in magnetohydrodynamic turbulence

Yang, Yan; Wan, Minping; Matthaeus, William; Shi, Yipeng; Parashar, Tulasi; Lu, Quanming; Chen, Shiyi;

Published by: Physics of Plasmas      Published on: 08/2019

YEAR: 2019     DOI: 10.1063/1.5099360

Parker Data Used; Physics - Space Physics; Astrophysics - Solar and Stellar Astrophysics; Physics - Plasma Physics

Single-spacecraft Identification of Flux Tubes and Current Sheets in the Solar Wind

A novel technique is presented for describing and visualizing the local topology of the magnetic field using single-spacecraft data in the solar wind. The approach merges two established techniques: the Grad-Shafranov (GS) reconstruction method, which provides a plausible regional two-dimensional magnetic field surrounding the spacecraft trajectory, and the Partial Variance of Increments (PVI) technique that identifies coherent magnetic structures, such as current sheets. When applied to one month of Wind magnetic field d ...

Pecora, Francesco; Greco, Antonella; Hu, Qiang; Servidio, Sergio; Chasapis, Alexandros; Matthaeus, William;

Published by: The Astrophysical Journal      Published on: 08/2019

YEAR: 2019     DOI: 10.3847/2041-8213/ab32d9

interplanetary turbulence; magnetic fields; parker solar probe; Solar Probe Plus; Solar wind

Energy conversion in turbulent weakly collisional plasmas: Eulerian hybrid Vlasov-Maxwell simulations

Pezzi, O.; Yang, Y.; Valentini, F.; Servidio, S.; Chasapis, A.; Matthaeus, W.~H.; Veltri, P.;

Published by: Physics of Plasmas      Published on: 07/2019

YEAR: 2019     DOI: 10.1063/1.5100125

Parker Data Used; Physics - Plasma Physics; Physics - Space Physics

Contextual Predictions for Parker Solar Probe. II. Turbulence Properties and Taylor Hypothesis

The Parker Solar Probe (PSP) primary mission extends seven years and consists of 24 orbits of the Sun with descending perihelia culminating in a closest approach of similar to 9.8 R-circle dot. In the course of these orbits PSP will pass through widely varying conditions, including anticipated large variations of turbulence properties, such as energy density, correlation scales, and cross helicities. Here we employ global magnetohydrodynamic simulations with self-consistent turbulence transport and heating to preview conditi ...

Chhiber, Rohit; , Usmanov; Matthaeus, William; Parashar, Tulasi; Goldstein, Melvyn;

Published by: ASTROPHYSICAL JOURNAL SUPPLEMENT SERIES      Published on: 05/2019

YEAR: 2019     DOI: 10.3847/1538-4365/ab16d7

Parker Data Used

Contextual Predictions for the Parker Solar Probe . I. Critical Surfaces and Regions

The solar corona and young solar wind may be characterized by critical surfaces\textemdashthe sonic, Alfv\ en, and first plasma-β unity surfaces\textemdashthat demarcate regions where the solar wind flow undergoes certain crucial transformations. Global numerical simulations and remote sensing observations offer a natural mode for the study of these surfaces at large scales, thus providing valuable context for the high-resolution in situ measurements expected from the recently launched Parker Solar Probe (PSP). The prese ...

Chhiber, Rohit; Usmanov, Arcadi; Matthaeus, William; Goldstein, Melvyn;

Published by: The Astrophysical Journal Supplement Series      Published on: 03/2019

YEAR: 2019     DOI: 10.3847/1538-4365/ab0652

Astrophysics - Solar and Stellar Astrophysics; magnetohydrodynamics: MHD; Parker Data Used; parker solar probe; Physics - Space Physics; Solar Probe Plus; Solar wind; Sun: corona; turbulence

Helios Observations of Quasiperiodic Density Structures in the Slow Solar Wind at 0.3, 0.4, and 0.6 AU

Di Matteo, S.; Viall, N.~M.; Kepko, L.; Wallace, S.; Arge, C.~N.; Macneice, P.;

Published by: Journal of Geophysical Research (Space Physics)      Published on: 02/2019

YEAR: 2019     DOI: 10.1029/2018JA026182

periodic density structures; slow solar wind formation

Turbulent electromagnetic fields at sub-proton scales: Two-fluid and full-kinetic plasma simulations

alez, C.~A.; Parashar, T.~N.; Gomez, D.; Matthaeus, W.~H.; Dmitruk, P.;

Published by: Physics of Plasmas      Published on: 01/2019

YEAR: 2019     DOI: 10.1063/1.5054110

Parker Data Used; Physics - Plasma Physics; Physics - Space Physics

2018

On slow solar wind with high Alfv\ enicity: from composition and microphysics to spectral properties

Alfv\ enic fluctuations are very common features in the solar wind and are found especially within the main portion of fast-wind streams while the slow wind usually is less Alfv\ enic and more variable. In general, the fast and slow winds show many differences, which span from the large-scale structure to small-scale phenomena, including also a different turbulent behaviour. Recent studies, however, have shown that even the slow wind can sometimes be highly Alfv\ enic, with fluctuations as large as those of the fast wind. ...

D’Amicis, Raffaella; Matteini, Lorenzo; Bruno, Roberto;

Published by: Monthly Notices of the Royal Astronomical Society      Published on: 3/2019

YEAR: 2018     DOI: 10.1093/mnras/sty3329

Astrophysics - Solar and Stellar Astrophysics; methods: data analysis; parker solar probe; Physics - Data Analysis; Physics - Plasma Physics; Physics - Space Physics; Solar Probe Plus; Solar wind; Statistics and Probability; turbulence

Higher-Order Turbulence Statistics in the Earth s Magnetosheath and the Solar Wind Using Magnetospheric Multiscale Observations

Chhiber, R.; Chasapis, A.; Bandyopadhyay, R.; Parashar, T.~N.; Matthaeus, W.~H.; Maruca, B.~A.; Moore, T.~E.; Burch, J.~L.; Torbert, R.~B.; Russell, C.~T.; Le Contel, O.; Argall, M.~R.; Fischer, D.; Mirioni, L.; Strangeway, R.~J.; Pollock, C.~J.; Giles, B.~L.; Gershman, D.~J.;

Published by: Journal of Geophysical Research (Space Physics)      Published on: 12/2018

YEAR: 2018     DOI: 10.1029/2018JA025768

Parker Data Used; Solar wind; magnetosheath; turbulence; plasma turbulence; intermittency; multispacecraft technique

A New Inner Heliosphere Proton Parameter Dataset from the Helios Mission

In the near future, Parker Solar Probe and Solar Orbiter will provide the first comprehensive in-situ measurements of the solar wind in the inner heliosphere since the Helios mission in the 1970s. We describe a reprocessing of the original Helios ion distribution functions to provide reliable and reproducible data to characterise the proton core population of the solar wind in the inner heliosphere. A systematic fitting of bi-Maxwellian distribution functions was performed to the raw Helios ion distribution function data ...

Stansby, David; Salem, Chadi; Matteini, Lorenzo; Horbury, Timothy;

Published by: Solar Physics      Published on: 11/2018

YEAR: 2018     DOI: 10.1007/s11207-018-1377-3

Astrophysics - Solar and Stellar Astrophysics; Heliosphere; Inner heliosphere; parker solar probe; Physics - Space Physics; Solar Probe Plus; Solar wind; Solar wind protons

Finite Dissipation in Anisotropic Magnetohydrodynamic Turbulence

Bandyopadhyay, Riddhi; Oughton, S.; Wan, M.; Matthaeus, W.~H.; Chhiber, R.; Parashar, T.~N.;

Published by: Physical Review X      Published on: 10/2018

YEAR: 2018     DOI: 10.1103/PhysRevX.8.041052

Parker Data Used; Physics - Plasma Physics; Physics - Fluid Dynamics; Physics - Space Physics

Incompressive Energy Transfer in the Earth\textquoterights Magnetosheath: Magnetospheric Multiscale Observations

Bandyopadhyay, Riddhi; Chasapis, A.; Chhiber, R.; Parashar, T.~N.; Matthaeus, W.~H.; Shay, M.~A.; Maruca, B.~A.; Burch, J.~L.; Moore, T.~E.; Pollock, C.~J.; Giles, B.~L.; Paterson, W.~R.; Dorelli, J.; Gershman, D.~J.; Torbert, R.~B.; Russell, C.~T.; Strangeway, R.~J.;

Published by: \apj      Published on: 10/2018

YEAR: 2018     DOI: 10.3847/1538-4357/aade04

Parker Data Used; magnetohydrodynamics: MHD; planets and satellites: magnetic fields; plasmas; Solar wind; turbulence; Physics - Space Physics

Solar Wind Turbulence Studies Using MMS Fast Plasma Investigation Data

Bandyopadhyay, Riddhi; Chasapis, A.; Chhiber, R.; Parashar, T.~N.; Maruca, B.~A.; Matthaeus, W.~H.; Schwartz, S.~J.; Eriksson, S.; Le Contel, O.; Breuillard, H.; Burch, J.~L.; Moore, T.~E.; Pollock, C.~J.; Giles, B.~L.; Paterson, W.~R.; Dorelli, J.; Gershman, D.~J.; Torbert, R.~B.; Russell, C.~T.; Strangeway, R.~J.;

Published by: \apj      Published on: 10/2018

YEAR: 2018     DOI: 10.3847/1538-4357/aade93

Parker Data Used; magnetohydrodynamics: MHD; methods: data analysis; methods: statistical; plasmas; Solar wind; turbulence; Physics - Space Physics

The Steady Global Corona and Solar Wind: A Three-dimensional MHD Simulation with Turbulence Transport and Heating

Usmanov, Arcadi; Matthaeus, William; Goldstein, Melvyn; Chhiber, Rohit;

Published by: \apj      Published on: 09/2018

YEAR: 2018     DOI: 10.3847/1538-4357/aad687

Parker Data Used; magnetohydrodynamics: MHD; methods: numerical; Solar wind; Sun: corona; Sun: rotation; turbulence

Dependence of Kinetic Plasma Turbulence on Plasma \ensuremath\beta

Parashar, Tulasi; Matthaeus, William; Shay, Michael;

Published by: \apjl      Published on: 09/2018

YEAR: 2018     DOI: 10.3847/2041-8213/aadb8b

Parker Data Used; plasmas; Solar wind; turbulence; Physics - Space Physics; Astrophysics - Astrophysics of Galaxies; Physics - Plasma Physics



  1      2      3